ˌimprōˈbāshən noun
Etymology: Middle French, from Latin improbation-, improbatio disapprobation, from improbatus (past participle of improbare to disapprove, from in- in- (I) + probare to examine, approve, prove) + -ion, -io -ion — more at prove
1. archaic : disapproval
2.
[Latin improbation-, improbatio ]
Scots law : an act by which falsehood and forgery are proved : an action brought for the purpose of having some instrument declared false or forged